Dr Flannery conceptualized and designed the study, carried out analyses, and drafted the initial manuscript; Drs Reynolds, Chen, Foppa, and Gargiullo conceptualized and carried out statistical analyses and contributed to and revised the manuscript; Ms Blanton, Drs Santibanez, Ms O’Halloran, and Dr Lu carried out the initial analyses and contributed to and reviewed the manuscript; Drs Bresee, Singleton, and Fry contributed to study design and critically reviewed the manuscript; and all authors approved the final manuscript as submitted.

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